Hi, thanks for writing to HCM.
From the description, I suspect one of the two below mentioned conditions which will produce pain in the legs and worsening of pain after walking -
* Vascular claudication - occurs due to insufficient blood circulation secondary to narrowing of the arteries in legs. This condition is commonly seen in SMOKERS. Vascular claudication is commonly seen in BUERGER'S DISEASE.
*Neurogenic claudication - occurs due to narrowing of the spinal canal
causing compression over the spinal cord
and nerves and is usually seen in aging population.
So I suggest you a detailed evaluation to rule out both vascular and neurological causes.
Hope this information is helpful. Good day